JP5658856B2 - Paper splicing method and apparatus enabling pattern matching - Google Patents

Description

  The present invention relates to a paper joining method and apparatus capable of easily joining paper of packaging materials in a vertical bag making filling and packaging machine.

  Conventionally, as shown in FIG. 13, in a vertical bag making filling and packaging machine, a web material such as a packaging material is wound around a paper tube to form a roll body, and the roll body is attached to the packaging machine. The roll holder 72 is rotatably attached to the roll holder 72, and the roll material is rotated in the unwinding direction in accordance with the packaging operation by the packaging machine, whereby the packaging material (web material) is supplied to the required machine / device. . The web-shaped packaging material supplied to the packaging machine is formed into a cylindrical shape, surrounds the periphery of the product, is subjected to heat sealing, and is gradually consumed by being formed into a bag for packaging the product. When the web-like packaging material is used up, the end of the packaging material (web material) built in the machine is detected, and the machine stops.

  For example, at this time, the packaging material (web material) is adsorbed by the packaging material (web material) adsorbing means 60 in a state where the full width is placed on the adsorption plates 64 and 64 as shown in FIG. 12 (Japanese Patent Laid-Open No. 2007-254084). reference). The worker moves the cutter blade along the slit 62 formed in the suction plates 64, 64, so that the web-shaped packaging material Fw is supplied with the packaging material Fw1 on the packaging machine side already supplied, Cutting the end-side packaging material Fwe attached to the paper tube, removing the end-side packaging material Fwe attached to the paper tube and the paper tube, attaching a new roll body to the roll holder, and the roll body Pull out a new web-like packaging material from the top, align the patterns on the adsorption plate, and paste them together with tape. The packaging material (web material) end detection device disclosed in Japanese Patent Application Laid-Open No. 2007-254084 can reliably detect the end of the packaging material without using an expensive sensor and is held on the suction plate, as will be described later. The replacement work is very easy.

Hereinafter, FIG. 12 will be described in detail.
According to the packaging material (web material) supply unit shown in FIG. 12, the web-shaped packaging material Fw is initially wound around a paper tube T to form a roll body R (shown by an imaginary line). The roll body R is gripped by a known chuck shaft 51 passed through the paper tube T, and is rotatably supported by shaft support portions 52 and 52 at both ends. The packaging material Fwe on the end side is attached to the paper tube T by the adhesive tape A. Instead of the adhesive tape A, it may be directly attached with an adhesive.

  The web-shaped packaging material Fw of the roll body R is supplied to the packaging machine so as to be rewound from the paper tube T by a driving force from a driving source such as a motor as the packaging machine is operated. Gradually consumed. The web-shaped packaging material Fw fed out from the roll R is guided by a plurality of guide rollers 53 and guide rollers 54 and supplied to an apparatus / machine using the web-shaped packaging material such as a packaging machine. Each guide roller 53, 54 is rotatably supported by an appropriate shaft. Since tension is applied to the web-shaped packaging material Fw, the guide rollers 53 and 54 virtually rotate without sliding with respect to the web-shaped packaging material Fw.

  The guide roller 54 is provided with a rotation direction detection means 55 that detects the rotation direction of the guide roller 54. The rotation direction detection means 55 has two blades 56 and 56 disposed as spaced apart in the rotation circumferential direction at one end of the guide roller 54 as a detected element that rotates together with the guide roller 54. In addition, as a detector capable of detecting the detection target, the sensor has two sensors 57a and 57b arranged at the same one end of the guide roller 54 in the vicinity of the guide roller 54 and spaced apart in the rotational circumferential direction. Yes. The sensors 57a and 57b are attached to a mounting plate fixed to the machine frame. Although two blades 56 are provided, this is for increasing the resolution of rotation of the guide roller 54, and the number of blades 56 may be another number. The sensors 57a and 57b may be any sensors as long as they can detect the passage of the optical and magnetic blades 56.

  When the blades 56, 56, which are to be detected, rotate together with the guide roller 54, the blades 56 that are arranged in the circumferential direction of the guide roller 54 are arranged in the vicinity of the guide roller 54. Pass one after another as a sensor. By using a plurality of sensors, the rotation direction of the guide roller can be known from the detection order of the blades 56. That is, the circumferential width of the blades 56 is larger than the circumferential distance between the sensors 57, and the circumferential distance between the blades 56, 56 is shorter than the circumferential distance between the sensors 57. For this reason, there are cases where both the sensor 57 detects the blade 56 and when it does not detect it, and the rotation direction of the guide roller 54 is detected depending on which side the blade 56 is detected when detecting the blade 56. be able to.

  When the guide roller 54 rotates in the forward direction, the blade 56 is detected and turned ON by one sensor 57 with the rotation, but the other sensor 57 is OFF without detecting the blade 56. When the rotation of the guide roller 54 further proceeds, the blade 56 is detected by both the sensors 57 and 57 and both are turned on. When the rotation of the guide roller 54 further proceeds, the sensor 7 that previously detected the blade 56 is turned OFF, but the other sensor 7 continues to detect the blade 56 and maintains the ON state. When the rotation of the guide roller 54 further proceeds, the other sensor 57 does not detect the blade 56 and is turned off. By comparing and judging such a change between the ON state and the OFF state, when the guide roller 54 rotates in the reverse direction, the detection order of the blades 56 comes first, so the guide roller 54 The rotation direction of 54 can be known.

  The mechanism for detecting the end of the web-shaped packaging material Fw is as follows. When the web-shaped packaging material Fw is drawn out to its end, at that moment, the paper tube T tries to continue to rotate in the same feeding direction due to inertia. At this time, the web-shaped packaging material Fw is wound slightly from the most drawn out state in a direction opposite to the winding direction that has been wound by the paper tube T that continues to rotate. As a result, the guide roller 54 rotates in the direction opposite to that when the web-shaped packaging material Fw is fed out. This rotation in the opposite direction is detected by the rotation direction detecting means 55 at an early stage until one rotation is made in the opposite direction. The end determination means 59 detects that the rotation direction of the guide roller 54 has been reversed based on the detection signal from the rotation direction detection means 55, and further, based on that, the fact that the web-shaped packaging material Fw has been fed to the end. judge.

  A packaging material (web material) adsorbing means 60 capable of adsorbing the web-shaped packaging material Fw is disposed on the traveling entrance side of the web-shaped packaging material Fw of the guide roller 54. The packaging material (web material) suction means 60 includes a suction plate 61 which is arranged in a form along the travel path of the web-shaped packaging material Fw and has a width W wider than the lateral width w of the web-shaped packaging material Fw. The suction plate 61 is formed with slits 62 that extend in the transverse direction of the web-shaped packaging material Fw and through which the cutter can pass, and suction hole arrays 63 and 63 that extend along the slits 62 on both sides of the slit 62. . Each suction hole row 63 can suck and hold the web-shaped packaging material Fw by, for example, a negative pressure generated with an ejector that blows out air.

  The packaging material (web material) adsorbing means 60 operates immediately to adsorb the web-shaped packaging material Fw when the end determination means 59 determines the end of the web-shaped packaging material Fw. The web-shaped packaging material Fw is adsorbed in a state where the full width is placed on the adsorption plate 61 of the packaging material (web material) adsorption means 60. By moving the cutter blade edge along the slit 62 formed in the suction plate 61, the web-like packaging material Fw is attached to the packaging material Fw1 on the packaging machine already supplied and the paper tube T. The end side packaging material Fwe is cut. Even after cutting, the packaging material Fw1 and the packaging material Fwe are sucked and held by the suction hole arrays 63 and 63, so that it is easy to perform a termination process such as paper splicing. The adsorption operation of the packaging material (web material) adsorption means 60 can be canceled by an appropriate switch operation or valve opening / closing operation by an operator.

Details of the conventional paper splicing step of FIG. 13 are shown in FIGS.
(A) Normal operation FIG. 14 shows a normal operation.
In FIG. 14, the packaging material Fr is wound around a winding holder 72, and the packaging material (film) Fw fed out of the winding holder 72 has a back surface as shown at first 81. This state continues, the back surface is also on the front side 82 of the bag making and filling cylinder 70, the surface is up on 83 of the cylinder making machine 1, and the packaging material Ft is subjected to the vertical sealing and horizontal sealing processes, and then the packaging. A bag Bp is formed.
(B) When the packaging material ends As shown in FIG. 15, when the packaging material ends during the normal operation, the packaging material end detection 74 is performed, and the operation stops with the packaging material Fw remaining on the paper connecting board 73. To do.
(C) At the time of paper joining operation As shown in FIG. 16, after the packaging material is finished, the next packaging material Fr1 is loaded into the take-up holder 72, and on the paper joining board 73, the previous packaging material Fw and The next packaging material Fw1 is bonded with a tape.
At this time, both the previous packaging material and the next packaging material must be bonded together with the back side up, as indicated by 81 and 84 in FIG.
The packaging material (films) Fw, Fw1 has a pattern printed on the surface, and the packaging machine performs the packaging operation at a constant pitch for each bag, so the previous packaging material Fw and the next packaging material Fw1 It is necessary to paste at exactly the same pattern position.
However, in the case of this conventional example, since the front surface (printing surface) is the back side, this paper splicing operation is performed on the upper side (back surface of the packaging material) while looking at the pattern on the lower side (back surface side; packaging material surface). It will be pasted together, and the work is not easy. In this method, since the bonding is performed with the back side of the packaging material facing up, there is a problem that it takes time and effort to match the patterns of the old and new packaging materials.

That is, as can be seen from FIG. 13, when the web-shaped packaging material is unwound from the roll holder 72, the surface (printing side) of the packaging material is on the lower side as shown at 75. Even immediately before being formed into a cylindrical shape after passing through a dancer roller or the like, as shown at 77, the back surface of the packaging material is on the upper side. The web-shaped packaging material supplied to the packaging machine is formed into a cylindrical shape and surrounds the periphery of the product. As shown by 78, a heat sealing process is performed, and the product is formed into a bag for packaging the product.
Therefore, in the above-described method that is normally assumed, the paper connection of the packaging material near the exit of the roll holder 72 is bonded with the back side of the packaging material facing up, so printing pattern alignment is troublesome. There is a drawback that it takes time and effort to match the patterns of the old and new packaging materials.

  As a mechanism for eliminating this inconvenience, one of conventional examples of a method for easily performing pattern matching and connection between old and new packaging materials is shown in FIGS. 17 to 19, which is disclosed in Japanese Patent Laid-Open No. 10-245014 and As disclosed in Japanese Unexamined Patent Publication No. 2000-264312, a method has been proposed in which a roll body is inclined by 90 degrees and inclined by 45 degrees during conveyance.

The operation of FIGS. 17 to 19 is as follows.
(A) During normal operation FIG. 17 shows during normal operation.
In FIG. 17, the packaging material Fr is wound around the winding holder 91, and the packaging material (film) Fw fed out from the winding holder 91 is as shown at 94 when it is first fed out from the holder 91. The surface is on the front.
Next, the direction is changed by a 45-degree tilting roller 93 so that the back surface is up as shown at 95, and the back surface is also up at the front 96 of the bag making and filling cylinder as it is. In the cylinder making machine 97, the surface is turned up, and the packaging material is subjected to a vertical sealing and horizontal sealing process to form a packaging bag.
The paper connecting plate 92 is provided at a position where the paper connecting plate 92 is fed from the holder 91.
(B) When the packaging material ends As shown in FIG. 18, when the packaging material ends during the normal operation, the operation stops with the packaging material Fw remaining on the paper connecting plate 92.
(C) At the time of paper joining operation As shown in FIG. 19, after the packaging material is finished, the next packaging material Fw1 is loaded into the take-up holder 91, and on the paper joining board 92, the previous packaging material Fw and The next packaging material Fw1 is bonded with a tape.
In this way, both the previous packaging material Fw and the next packaging material Fw1 can be bonded together with their surfaces on top as shown by 98 and 94 in FIG. For this reason, the previous packaging material Fw and the next packaging material Fw1 can be easily bonded together at the same pattern position on the front side.

In this method, since the front side (printing surface) 94 is on the upper side between the roller 93 inclined 45 degrees and the roller immediately after the packaging material roll, it is easy to perform pattern matching if a paper joining operation is performed between them. However, this method has a drawback that the packaging material (web material) is inclined 45 degrees, so that the conveyance path is complicated and the packaging material is likely to meander.
In addition, as another conventional example, a displacement sensor is provided in the packaging material roll, the machine is stopped before the packaging material (web material) is completely finished, the remaining packaging material (web material) is wound up, and a new There is a method in which the packaging material roll Fr1 is set and the old and new packaging materials are connected to each other on the surface side on a new packaging material roll.

Another method described above will be described with reference to FIGS.
(A) During normal operation FIG. 20 shows during normal operation.
In FIG. 20, the packaging material Fr is wound around the winding holder 100, and the packaging material (film) Fw fed out from the winding holder 100 has the back side up as shown at first 102. This state continues, the back surface is also on the front 103 of the bag making and filling cylinder 105, the surface is up on the cylinder making machine 104, and the packaging material Ft is subjected to the vertical sealing and horizontal sealing processes, and the packaging is performed. A bag Bp is formed.
(B) When the packaging material ends As shown in FIG. 21, when the packaging material ends during the normal operation, the packaging material end detection 101 is performed, and the operation stops with the packaging material Fw remaining.
The end of the packaging material is detected by measuring the distance between the detector and the roll surface of the take-up holder.
(C) At the time of paper splicing work As shown in FIG. 22, the packaging material 107 on the winding holder that has been left over is unwound and separated from the winding holder 100 in the packaging material finished state.

The next packaging material Fr1 is loaded into the take-up holder 100, and the unwrapped packaging material Fw and the next packaging material Fw1 are bonded together with a tape on the take-up holder 100.
At this time, both the previous packaging material and the next packaging material can be bonded together with their surfaces facing upward as shown by 108 and 109 in FIG.
However, in this method, a displacement sensor that accurately measures the distance from the sensor 101 to the surface of the take-up roll Fr must be used for detecting the end of the packaging material (web material), but this sensor is very expensive. There are drawbacks. Also, since this type of displacement sensor is based on magnetic detection, it can only measure objects that contain metal objects. Therefore, when used for detecting the end of the packaging material, only the packaging material on which aluminum is deposited can be measured, and the target packaging material is limited. Further, as shown in FIG. 22, it takes time to unwind the remaining packaging material.

JP 2007-240884 A Japanese Patent Laid-Open No. 10-2445014 JP 2000-26431 A

  Without affecting the conveyance of the packaging material, without using expensive sensors or complicated mechanisms, the end of the web can be reliably detected in the rotation direction of the guide roller, and the patterns can be easily matched between the surfaces, It is an object of the present invention to provide a vertical bag making and filling machine capable of performing a paper joining operation on the surface side of a packaging material.

  In the vertical filling and packaging machine according to the present invention, a paper filling method is provided by providing a vertical filling and packaging machine with a one-way stopper member that does not rotate in the conveyance direction of the packaging material but can rotate only in the opposite conveyance direction. At the same time when the end is detected and the paper feed is stopped, one of the guide rollers for guiding the packaging material is fixed by the one-way stopper member to hold the packaging material, and after the next packaging material roll is set, the one-way stopper The end of the previous packaging material fixed and held by the member is pulled out onto the next packaging material roll to perform paper joining.

Further, the one-way stopper member is a rubber roller, the rubber roller is provided immediately above the guide roller for detecting the end of the packaging material, and is configured to be close to and away from the guide roller. The guide rollers are spaced apart from each other except when the packaging material is finished, approaching at the same time as the packaging material finish detection, and the guide roller is stopped.
Still further, the rotation direction of the guide roller, which is provided at the end portion of the gyro roller and includes a detection plate that rotates integrally with the guide roller, and two proximity sensors provided in opposition to the detection plate, An end detector capable of detection is provided, and the end of the packaging material is detected by detecting reverse rotation of the guide roller by the two proximity sensors.

  Furthermore, a dancer roller is provided on the downstream side of the guide roller that is stopped by the end detection, and when the paper feed is stopped by the end detection, an extra packaging material is left in a storage portion by the dancer roller, and an extra portion left on the dancer roller The paper is connected by pulling out the packaging material, and a sensor for detecting the position of the dancer roller is further provided, and the winding servo is controlled so that the dancer roller maintains a fixed position during the conveyance of the packaging material, and the packaging material Easily replace the packaging material by keeping the tension of the packaging material being transported constant and securing the reservoir at the end of the packaging material or by catching the dancer roller at the top dead center of the dancer roller It is characterized by that.

  The vertical filling and packaging machine of the present invention is a vertical bag making and filling machine comprising a bag making and filling cylinder, a paper feed belt, a vertical sealer, a horizontal sealer, a winding holder, a plurality of guide rollers, and a packaging material end detector. 1 is provided with a one-way stopper member that does not rotate in the conveyance direction of the packaging material but can rotate only in the opposite conveyance direction, detects the end of the packaging material, stops paper feeding, and simultaneously guides the packaging material. Is fixed by the one-way stopper member to hold the packaging material, and the end of the previous packaging material fixed and held by the one-way stopper member is pulled out onto the next packaging material roll to perform paper joining. It is characterized by that.

Further, the one-way stopper member is a rubber roller, and the rubber roller is provided immediately above the guide roller for detecting the end of the packaging material, and is configured to be close to and away from the guide roller, so that the packaging material ends. The guide rollers are separated at times other than the time, approached simultaneously with the end of the packaging material, and the guide roller is stopped.
Still further, a rotation direction of the guide roller which is provided at an end portion of the guide roller and which includes a detection plate which rotates integrally with the guide roller, and two proximity sensors provided so as to oppose the detection plate. The end detector of the packaging material is detected by detecting the reverse rotation of the guide roller by the two proximity sensors.

  Furthermore, a dancer roller is provided on the downstream side of the guide roller that is stopped by the end detection, and when the paper feed is stopped by the end detection, an extra packaging material is left in a storage portion by the dancer roller, and an extra portion left on the dancer roller The paper is connected by pulling out the packaging material, and a sensor for detecting the position of the dancer roller is further provided, and the winding servo is controlled so that the dancer roller maintains a fixed position during the conveyance of the packaging material, and the packaging material Easily replace the packaging material by keeping the tension of the packaging material being transported constant and securing the reservoir at the end of the packaging material or by catching the dancer roller at the top dead center of the dancer roller It is characterized by that.

The present invention is a paper joining operation in which the pattern matching of the packaging material is performed on the front side and the patterns of the surfaces are easily aligned by the method of Japanese Patent Application Laid-Open No. 2007-240884 that can detect the end of the web reliably with a simple mechanism. This is a vertical bag making filling and packaging machine that does not tilt the wrapping material (web material) by 45 degrees, so that the conveyance path is simple and the wrapping of the wrapping material does not occur.
Further, an expensive displacement sensor for accurately measuring the distance is not required, and furthermore, the finished packaging material can be fed out on the roll holder and can be easily joined together, so that the work efficiency is good. In addition, since the above-mentioned feeding portion is stored in the dancer roll portion, the feeding operation of the packaging material at the time of paper joining becomes easy.

It is a figure which shows the whole structure of the paper joining method and apparatus which enable the pattern matching of this invention. It is a figure which shows the state of the dancer roller in a packaging material set in the initial state of the paper joining method and apparatus which enable pattern matching of this invention. It is a figure which shows the state of the dancer roller at the time of completion | finish of the packaging material set of the paper joining method and apparatus of the present invention which enables pattern matching of the present invention. It is a figure which shows the state of the dancer roller during driving | operation of the paper joining method and apparatus which enable pattern matching of this invention. It is an operation | movement figure in operation | movement by the initial state of the paper splicing method and apparatus which enables the pattern matching of this invention. It is an operation | movement figure at the time of completion | finish of the packaging material of the paper joining method and apparatus which enable pattern matching of this invention. It is an operation | movement figure in the paper splicing operation | work of the paper splicing method and apparatus which enables pattern matching of this invention. It is an operation | movement figure at the time of completion | finish of the paper splicing operation | work of the paper splicing method and apparatus which enables the pattern matching of this invention. FIG. 3 is an enlarged perspective view of a stopper roller portion of a paper joining method and apparatus that enables pattern matching according to the present invention. FIG. 3 is an enlarged perspective view of a dancer roller portion of a paper splicing method and apparatus that enables pattern matching according to the present invention. It is a flowchart of each operation | movement of the paper splicing method and apparatus which enables pattern matching of this invention. It is explanatory drawing of the conventional paper splicing apparatus. It is explanatory drawing of the back and front of the packaging material of a vertical filling packaging machine. It is an operation | movement figure in normal operation of the conventional vertical filling packaging machine. It is an operation | movement figure at the time of the completion | finish of the packaging material of the conventional vertical filling packaging machine. It is an operation | movement figure in the paper splicing operation | work of the conventional vertical filling packaging machine. It is an operation | movement figure in normal operation of the vertical filling packaging machine which inclines and installs the conventional roll body by 90 degree | times, and inclines 45 degree | times in the middle of conveyance. It is an operation | movement figure at the time of the completion | finish of the packaging material of the vertical filling packaging machine which inclines and installs the conventional roll body by 90 degree | times, and inclines 45 degree | times in the middle of conveyance. It is an operation | movement figure in the paper joining operation | work of the vertical type filling packaging machine which inclines the conventional roll body 90 degree | times, and inclines 45 degree | times in the middle of conveyance. It is an operation | movement figure in normal operation of the other conventional vertical filling packaging machine. It is an operation | movement figure at the time of the completion | finish of the packaging material of the other conventional vertical filling packaging machine. It is an operation | movement figure in the paper splicing work of the other conventional vertical filling packaging machine. It is an operation | movement figure in the paper splicing operation | work of the other conventional vertical filling packaging machine following FIG.

Hereinafter, embodiments of a paper joining method and apparatus that enable pattern matching according to the present invention will be described in detail with reference to FIGS.
FIG. 1 shows the overall configuration of a paper joining method and apparatus that enables pattern matching according to the present invention.
FIG. 2 shows the state of the dancer roller in the packaging material set (the state where the dancer roller 13 is caught. Details will be described later) in the initial state of the paper splicing method and apparatus of the present invention. FIG. 3 shows the state of the dancer roller (the catch is released) at the end of the packaging material set of the paper splicing method and apparatus of the present invention. FIG. 4 shows a normal operation state (during operation) of the paper splicing method and apparatus of the present invention.

In FIG. 1, the vertical bag making and packing machine includes a cylinder making machine 1, a bag making and filling cylinder 2, a paper feeding belt 3, a vertical sealer 4, a horizontal sealer 5, a winding holder 10 and a guide roller 11, as described above. 12, 25, 26, and the like.
Similar to FIG. 13, in FIG. 1, the vertical bag making and filling machine is such that a web material Fr such as a packaging material is wound around a paper tube to form a roll body, and the roll body is attached to the packaging machine. The roll holder 10 is rotatably mounted, and the packaging material (web material) is supplied to the required machine or device by rotating the roll body in the rewinding direction according to the packaging operation by the packaging machine. The The web-shaped packaging material Fw supplied to the packaging machine is formed into a cylindrical shape in the cylinder making machine 1 so as to surround the product, and is subjected to heat sealing 4 and 5 to form a bag Bp for packaging the product. It is consumed gradually by being done. When the web-like packaging material Fw is used up, it is detected by the end detection device 22 for the packaging material (web material) built in the machine, and the machine stops.

  The tension applying means is composed of a dancer roller 13, dancer roller position detection sensors (linear sensors and detection plates) 14, 15 and a take-up shaft drive servomotor 16. During the packaging material conveyance, the dancer roller 13 is at a fixed position (movable range). It is controlled by the control device 8 so as to maintain the vicinity of the middle). The control device 8 grasps the current position of the dancer roller by the dancer roller position detection sensors 14 and 15 (FIG. 10), and controls the rotation speed of the take-up shaft drive servomotor 7 so as to maintain the target position. Thereby, the tension of the strip-shaped packaging material Fw is kept constant during the packaging material conveyance.

  When the conveyance of the packaging material is stopped, the control device 8 also stops the winding shaft drive servomotor 16. Thereby, the dancer roller 13 falls to the lowest position by its own weight. As shown in FIG. 10, the dancer roller 13 slides on two slide rolls 39, two rotatable rolls A and B (13 </ b> A and 13 </ b> B), two connecting plates 37 that hold the ends of the rolls, and the slide shaft 39. The slider 41 is configured. Thereby, these dancer rollers move up and down on the slide shaft 39 according to the conveyance of the strip-shaped packaging material Fw.

The guide roller A (11) (FIG. 1) between the film roll Fr and the dancer roller is provided with a packaging material end detection device 22. This is the same as that disclosed in Japanese Patent Application Laid-Open No. 2007-254084, and as shown in FIG. 9, is composed of a detection plate 15 attached to the rotating shaft of the guide roller A (11) and two sensors. The end of the packaging material is detected by the rotation direction of the guide roller A (11).
Further, as shown in FIG. 9, a rubber roll 21 with a one-way stopper is provided as a stopper member immediately above the guide roller A (11). The rubber roll 21 with a one-way stopper is driven by an air cylinder 20 and is configured to be close to and away from the guide roller A (11). The one-way stopper-equipped rubber roll 21 does not rotate in the conveyance direction (arrow) of the packaging material, but can rotate only in the opposite conveyance direction.

As described above, the feature of the present invention is that the stopper roller 21 and the dancer roller 13 are provided in FIG. FIG. 9 is an enlarged view of a driving portion of the stopper roller 21.
In FIG. 1, the control device 8 is provided in the apparatus of the present invention, and an end detection signal 31 from the roll body end detector 22, a stopper drive signal 32 to the air cylinder of the stopper roller 21, and a winding drive. The winding drive control signal 30 to the servo motor 16, the position signal 33 of the dancer roller 13 detected by the detection plate 15, the paper feed command signal 34 to the paper feed belt drive motor 7, etc. are handled.

  As described above, the end of the packaging material is detected by a method similar to that disclosed in Japanese Patent Application Laid-Open No. 2007-254084. The packaging material end detection device is provided on the guide roller immediately after the winding roll. As shown in FIG. 9, the guide roller A (11) located between the film roll Fr and the dancer roller 13 in FIG. This is composed of a detection plate 29 and two sensors 28, 28 'attached to the rotation shaft of the guide roller A (11), and detects the end of the packaging material by the rotation direction of the guide roller A (11). is there.

  As described above, when the end of the packaging material is detected, the control device 8 performs a machine stop process as shown in FIG. 11A, and the one-way stopper-filled rubber roll 21 that does not rotate in the conveyance direction of the packaging material. Is lowered and the packaging material (web material) is pressed down, so that the machine is stopped while leaving the excess packaging material in the storage portion by the dancer roller 13 (see FIG. 6). After the old paper tube is removed and a new roll is set in the take-up holder 10, the packaging material (web material) fixed by the rubber roll 21 with a one-way stopper that can rotate only in the counter-transport direction is the direction of the new roll set above. Pull out to the top, pattern the surfaces together, and connect the paper. Since the old packaging material (web material) is simply pulled out in the direction of the roll, the paper joining operation can be performed immediately without taking the trouble of unwinding the conventional winding as shown in FIG. When the operation is resumed after the end of the paper joining operation, the fixing of the packaging material by the rubber roll 21 with the one-way stopper is automatically released by the control device 8 as shown in FIG.

  Moreover, the storage part of a packaging material (web material) is made by providing the dancer roller 13 in the downstream of the guide roller A (11) which performs packaging material completion | finish detection. Thus, when the dancer roll part is provided, it is troublesome to pass the dancer roll part when setting the packaging material (web material) in a new state (a state where no packaging material is applied in the machine). However, as a contrivance, a mechanism for catching the dancer roller 13 at the top dead center is provided. With this, when a packaging material is newly set, the operation of passing the packaging material to the dancer roller 13 is performed on the horizontal portion. Since the material is threaded, the new web material can be easily set.

  As described above, the sensor (linear scale) 14 for detecting the position of the dancer roller 13 and the servo motor 16 for rotating the winding shaft are provided, and the winding shaft servo is maintained so that the dancer roller 13 is maintained at a fixed position during conveyance of the packaging material. The motor 16 is controlled. Thereby, the packaging material (web material) is maintained at a constant tension, and a constant storage portion is formed in the dancer roller portion.

5 to 8 show the operation process of the paper joining method and apparatus that enables pattern matching according to the present invention. FIG. 5 shows a state during operation of the packaging machine that performs the above-described paper splicing of the present invention during operation.
As described above, the tension applying means is controlled by the control device 8 so that the dancer roller 13 is kept at a fixed position (near the middle of the movable range) during conveyance of the packaging material. During the transportation of the packaging material, the tension of the belt-shaped packaging material Fw is kept constant.
FIG. 6 shows a state in which the packaging material is finished and the stopper works during the operation. FIG. 7 is an explanatory diagram of the paper splicing operation, and FIG. 8 shows a state where the paper splicing is finished and the stopper is released. The dancer roller descends as in FIG. Next, the operation is resumed (FIG. 5).
As shown in FIG. 6, when the end of the packaging material is detected, the control device 8 drives the air cylinder 20 to lower the rubber roll 21 with a one-way stopper, and sandwiches it with the guide roller A (11), thereby forming a belt-shaped packaging material. Press Fw. Since the rubber roll 21 with a one-way stopper that does not rotate in the packaging material conveyance direction presses the packaging material (web material), the dancer roller 13 falls to the lowest position by its own weight as in the case where the conveyance of the normal packaging material is stopped. The machine is stopped while leaving excess packaging material in the reservoir without any problems.

As shown in FIG. 7, after the old paper tube is removed and a new roll Fr1 is set, the packaging material (web material) fixed by the rubber roll 21 with a one-way stopper that can rotate only in the anti-conveying direction is pulled out in the direction of the new roll. Align the surfaces and perform the paper joining work. Since the old web material is simply pulled out in the direction of the roll, the paper joining operation can be performed easily and easily without the need to unwind the conventional web material.
When the paper joining is completed, the stopper roller 21 is released (FIG. 8). Thereafter, when the catcher 19 is removed, the dancer roller 13 is lowered and the normal operation of FIG. 5 is resumed.

In addition, when using a dancer roller, when setting a packaging material (web material) in a new state (a state where no web material is applied in the machine), it is troublesome to pass the dancer roll part. Thus, by providing a mechanism for catching the dancer roller 13 at the top dead center, it is possible to set a new packaging material (web material) in the horizontal direction, as well as work to pass the packaging material between the guide rollers. Easy to do.
Hereinafter, the setting operation of the packaging material in the initial state will be described with reference to FIGS.
FIG. 2 shows a state when the packaging material is set in the initial state. At this time, the dancer roller 13 is held by the catcher 19 provided at the top dead center. By doing so, the packaging material can be passed horizontally, so that the operation of passing the dancer roll portion can be simplified.
As shown in FIG. 3, the catcher 19 of the dancer roller is released after the initial packaging material set. As shown in FIG. 4, during the operation, the dancer roller 13 is controlled so as to maintain a constant position (a constant storage amount) as described above.

  As shown in FIG. 10, the catch mechanism has a spring member on the body frame so as to be positioned slightly above the top dead center of the catch lever 18 and the dancer roller 13 provided on one of the connecting plates 37 of the dancer roller. It consists of a catcher 19 consisting of a bearing provided through. When the packaging material (web material) is set, the catch lever 18 is manually lifted and the catcher 19 is held by the catcher 19 so that the packaging material (web material) can be easily set.

  The vertical bag making and packing machine of the present invention does not affect the conveyance of the packaging material, and can reliably detect the end of the web in the rotation direction of the guide roller without using an expensive sensor or a complicated mechanism. In addition, since the paper joining work that easily aligns the patterns of the surfaces can be performed on the front side, the work efficiency is good, the maintenance cost and time are reduced, and the convenience for the user is excellent. High availability.

DESCRIPTION OF SYMBOLS 1 Cylinder 2 Bag making filling cylinder 3 Paper feed belt 4 Vertical sealer 5 Horizontal sealer 7 Paper feed servo motor 8 Control device 10 Winding holder 11 Guide roller 12 Guide roller 13 Dancer roller 14 Linear scale 15 Detector plate 16 Winding servo motor DESCRIPTION OF SYMBOLS 19 Catcher 20 Air cylinder 21 Stopper roller 25 Guide roller 26 Guide roller 28 Proximity sensor 29 Detecting plate 53 Guide roller 54 Guide roller 56 Detecting plate 57 Sensor 64 Adsorption plate 70 Bag making filling cylinder 71 Tube making machine 72 Take-up holder 73 Paper joint Plate 74 End detection of packaging material 91 Winding holder 92 Paper tether plate 93 45-degree tilting roller 100 Winding roller 105 Bag making and filling cylinder 106 Cylinder making machine

Claims (12)

  The vertical filling and packaging machine is provided with a one-way stopper member that does not rotate in the packaging material conveyance direction but can only rotate in the opposite conveyance direction, detects the end of the packaging material, stops the paper feed, and guides the packaging material at the same time The packaging material is held by fixing one of the guide rollers with the one-way stopper member, and after the next packaging material roll is set, the end of the packaging material until then held fixed by the one-way stopper member A paper joining method in a vertical filling and packaging machine, wherein the paper is joined by pulling out the product onto the next packaging material roll.   The one-way stopper member is a rubber roller, the rubber roller is provided immediately above the guide roller for detecting the end of the packaging material, and is configured to be close to and away from the guide roller. 2. The paper splicing method in the vertical filling and packaging machine according to claim 1, wherein the guide rollers are moved apart from each other except at the end, approached simultaneously with the end of the packaging material detection, and the guide roller is stopped.   An end that can detect the rotation direction of the guide roller, comprising a detection plate that is provided at an end of the guide roller and rotates integrally with the guide roller, and two proximity sensors that are provided to face the detection plate 3. The method of joining sheets in a vertical filling and packaging machine according to claim 2, further comprising a detector, wherein the end of the packaging material is detected by detecting the reverse rotation of the guide roller by the two proximity sensors. .   When a dancer roller is provided on the downstream side of the guide roller stopped by the end detection, and when paper feeding is stopped by the end detection, an extra packaging material is left in the storage portion by the dancer roller, and an extra packaging material left on the dancer roller The paper joining method in the vertical filling and packaging machine according to any one of claims 1 to 3, wherein the paper joining is performed by pulling out the paper. It further has a sensor for detecting the position of the dancer roller, controls the winding servo so that the dancer roller keeps a constant position during conveyance of the packaging material, keeps the tension of the packaging material during conveyance of the packaging material constant, 5. The paper joining method in the vertical filling and packaging machine according to claim 4 , wherein the storage portion at the end of the packaging material is secured.   6. The paper joining method in the vertical filling and packaging machine according to claim 4, wherein a mechanism for catching the dancer roller at a top dead center of the dancer roller is provided to facilitate the replacement of the packaging material. In a vertical bag making and filling machine comprising a bag making and filling cylinder, a paper feed belt, a vertical sealer, a horizontal sealer, a winding holder, a plurality of guide rollers and a packaging material end detector,
A one-way stopper member that does not rotate in the conveyance direction of the packaging material but can rotate only in the opposite conveyance direction is provided, and at the same time one of the guide rollers that guide the packaging material is detected while detecting the end of the packaging material and stopping the paper feed. The packaging material is held by being fixed by the one-way stopper member, and the end of the previous packaging material fixed and held by the one-way stopper member is pulled out onto the next packaging material roll to perform the paper joining. Characteristic vertical filling and packaging machine.   The one-way stopper member is a rubber roller, and the rubber roller is provided immediately above the guide roller for detecting the end of the packaging material, and is configured to be close to and away from the guide roller. 8. The vertical filling and packaging machine according to claim 7, wherein the guide rollers are moved away from each other and approached simultaneously with detection of the end of the packaging material, and the guide roller is stopped.   An end that can detect the rotation direction of the guide roller, comprising a detection plate that is provided at an end of the guide roller and rotates integrally with the guide roller, and two proximity sensors that are provided to face the detection plate 9. The vertical filling and packaging machine according to claim 8, further comprising a detector, wherein the end of the packaging material is detected by detecting the reverse rotation of the guide roller by the two proximity sensors.   When a dancer roller is provided on the downstream side of the guide roller stopped by the end detection, and when paper feeding is stopped by the end detection, an extra packaging material is left in the storage portion by the dancer roller, and an extra packaging material left on the dancer roller The vertical filling and packaging machine according to any one of claims 7 to 9, wherein the paper is joined by pulling out the paper. It further has a sensor for detecting the position of the dancer roller, controls the winding servo so that the dancer roller keeps a constant position during conveyance of the packaging material, keeps the tension of the packaging material during conveyance of the packaging material constant, The vertical filling and packaging machine according to claim 10 , wherein the storage portion at the end of the packaging material is secured.   The vertical filling and packaging machine according to claim 10 or 11, wherein a mechanism for catching the dancer roller at a top dead center of the dancer roller is provided to facilitate the replacement of the packaging material.

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